Professional Plus (Pro Plus) Multiparameter Instrument

YSI Professional Plus Multiparameter Water Quality Instrument

YSI Pro Plus multiparameter meter. This handheld laboratory/field water quality meter features many options to make your job easier. On-screen Help, backlit display and keypad, 5,000 data set memory and rugged connectors are just some of the features.

Price$1,260.00 (US Only)

SKU6050000


In Stock 85

The YSI Professional Plus handheld multiparameter meter provides extreme flexibility for the measurement of a variety of combinations for dissolved oxygen, conductivity, specific conductance, salinity, resistivity, total dissolved solids (TDS), pH, ORP, pH/ORP combination, ammonium (ammonia), nitrate, chloride and temperature. Also a very powerful lab instrument for BODs, pH and ORP.

EPA approved for drinking water and wastewater compliance reporting.

Instrument Only.  Cables, probes/sensors, and accessories sold separately.

  • Order Meter
    SKU Description Price Quantity
    6050000 Professional Plus (Pro Plus) $1,260.00
  • Order Cables
    SKU Description Price Quantity
    605109 Pro Series Lab pH/ORP Sensor with 1 M Cable $305.00
    605179 Pro Series Lab pH/ORP Sensor with 4 M Cable $325.00
    6051020-1 Pro Series pH/ORP/ISE and DO Cable - 1 m $575.00
    6051020-4 Pro Series pH/ORP/ISE and DO Cable - 4 m $595.00
    6051020-10 Pro Series pH/ORP/ISE and DO Cable - 10 m $650.00
    6051020-20 Pro Series pH/ORP/ISE and DO Cable - 20 m $745.00
    6051020-30 Pro Series pH/ORP/ISE and DO Cable - 30 m $865.00
    60510-1 Pro Series pH/ORP/ISE Cable - 1 m $270.00
    60510-4 Pro Series pH/ORP/ISE Cable - 4 m $270.00
    60510-10 Pro Series pH/ORP/ISE Cable - 10 m $315.00
    60510-20 Pro Series pH/ORP/ISE Cable - 20 m $380.00
    60510-30 Pro Series pH/ORP/ISE Cable - 30 m $485.00
    605780 ProBOD - Pro Series BOD Probe $725.00
    605108 Pro Series Lab ORP (Redox) Sensor with 1 M Cable $200.00
    605178 Pro Series Lab ORP (Redox) Sensor with 4 M Cable $240.00
    6051030-1 Pro Series pH/ORP/ISE and Conductivity Cable - 1 m $475.00
    6051030-4 Pro Series pH/ORP/ISE and Conductivity Cable - 4 m $495.00
    6051030-10 Pro Series pH/ORP/ISE and Conductivity Cable - 10 m $540.00
    6051030-20 Pro Series pH/ORP/ISE and Conductivity Cable - 20 m $600.00
    6051030-30 Pro Series pH/ORP/ISE and Conductivity Cable - 30 m $725.00
    60530-1 Pro Series Conductivity Sensor with 1 M Cable $330.00
    60530-4 Pro Series Conductivity Sensor with 4 M Cable $340.00
    60530-10 Pro Series Conductivity Sensor with 10 M Cable $400.00
    60530-20 Pro Series Conductivity Sensor with 20 M Cable $450.00
    60530-30 Pro Series Conductivity Sensor with 30 M Cable $560.00
    60520-1 Pro Series DO Cable - 1 m $250.00
    60520-4 Pro Series DO Cable - 4 m $265.00
    60520-10 Pro Series DO Cable - 10 m $315.00
    60520-20 Pro Series DO Cable - 20 m $375.00
    60520-30 Pro Series DO Cable - 30 m $475.00
    60520-100 Pro Series DO Cable - 100 m $750.00
    6051010-1 Pro Series Dual pH/ORP/ISE Cable - 1 m $575.00
    6051010-4 Pro Series Dual pH/ORP/ISE Cable - 4 m $585.00
    6051010-10 Pro Series Dual pH/ORP/ISE Cable - 10 m $635.00
    6051010-20 Pro Series Dual pH/ORP/ISE Cable - 20 m $745.00
    6051010-30 Pro Series Dual pH/ORP/ISE Cable - 30 m $850.00
    605107 Pro Series Lab pH Sensor with 1 M cable $190.00
    605177 Pro Series Lab pH Sensor with 4 M cable $200.00
    6052030-1 Pro Series DO/Conductivity Sensor with 1 M Cable $635.00
    6052030-4 Pro Series DO/Conductivity Sensor with 4 M Cable $650.00
    6052030-10 Pro Series DO/Conductivity Sensor with 10 M Cable $705.00
    6052030-20 Pro Series DO/Conductivity Sensor with 20 M Cable $760.00
    6052030-30 Pro Series DO/Conductivity Sensor with 30 M Cable $860.00
    605790-1 Pro Plus Quatro Cable, 1 M $1,375.00
    605790-4 Pro Plus Quatro Cable, 4 M $1,410.00
    605790-10 Pro Plus Quatro Cable, 10 M $1,470.00
    605790-20 Pro Plus Quatro Cable, 20 M $1,580.00
    605790-30 Pro Plus Quatro Cable, 30 M $1,715.00
  • Order Sensors
    SKU Description Price Quantity
    605105 1005 - Pro Series Chloride Sensor (ISE) $365.00
    605203 2003 - Pro Series Polarographic Dissolved Oxygen Sensor $185.00
    605102 1002 - Pro Series ORP Sensor (ISE) $205.00
    605202 2002 - Pro Series Galvanic Dissolved Oxygen Sensor $185.00
    605106 1006 - Pro Series Nitrate Sensor (ISE) $365.00
    605101 1001 - Pro Series pH Sensor (ISE) $175.00
    605103 1003 - Pro Series pH/ORP Sensor (ISE) $295.00
  • Order Standards and Solutions
    SKU Description Price Quantity
    003885 Nitrate Standard, 1 mg/L (500mL) $83.00
    003886 Nitrate Standard, 10 mg/L (500mL) $83.00
    003887 Nitrate Standard, 100 mg/L (500mL) $83.00
    005580 5580 - Confidence Solution to verify pH, ORP and conductivity data (not for calibration) $104.00
    003821 pH 4 Buffer (box of 6 pints) $80.00
    003822 pH 7 Buffer (box of 6 pints) $80.00
    003823 pH 10 Buffer (box of 6 pints) $80.00
    603824 pH Buffer Assorted Case (2 ea pints of 4, 7, 10) $80.00
    065270 3161: Conductivity Calibrator 1,000 umhos/cm (quart) Fresh Water $73.00
    065272 3163: Conductivity Calibrator 10,000 umhos/cm (quart) Brackish Water $73.00
    065274 3165: Conductivity Calibrator 100,000 umhos/cm (quart) Supersaturated Sea Water $73.00
    060907 3167: Conductivity Calibrator 1,000 umhos/cm (8 ea, pint) Fresh Water $125.00
    060906 3160: Conductivity Calibrator 1413 umhos/CM, +/- 1% (.01 MOLAR KCL) (8 ea, pint) $125.00
    060911 3168: Conductivity Calibrator 10,000 umhos/cm (8 ea, pint) Brackish Water Conductivity Calibrator, 10,000 umhos/cm (8 ea, pint) $125.00
    060660 3169: Conductivity Calibrator 50,000 umhos/cm (8 ea, pint) Sea Water $125.00
    003841 Ammonium Cal Solution, 1 mg/L (500mL) $83.00
    003842 Ammonium Cal Solution, 10 mg/L (500mL) $83.00
    003843 Ammonium Cal Solution, 100 mg/L (500mL) $83.00
    061320 061320: 125 mL Zobell Solution $33.00
    061321 061321: 250 mL Zobell Solution $50.00
    061322 061322: 500 mL Zobell Solution $75.00
  • Order Accessories
    SKU Description Price Quantity
    603078 3078 - Flow Cell Adaptor-Single Port $100.00
    605978 5978 - 4.9 oz weight $27.00
    603059 3059 - Flow Cell, Standard, 203 mL (2 port cable assembly) $340.00
    603075 3075 - Pro Series Soft Sided Carrying Case $125.00
    603062 3062 - Cable management kit (included with any cable 10, 20, or 30-meters long $18.00
    063019 690 - Weight, Probe/Cable, 24 oz, 3" $155.00
    603069 3069 - Belt clip (screws into back of meter) $28.00
    603077 3077 - Flow Cell Kit, 1 or 2 Port Sensor $385.00
    603070 3070 - Shoulder strap $31.00
    603056 3056 - Flow cell mounting spike $30.00
    606850 6850 - Quatro Cable Flow Cell $385.00
    063020 691 - Weight, Probe/Cable, 51 oz, 6" $190.00
    605170 170 - Electrode Stand $97.00
    626444 6444 - Pro Series Lab Dock $46.00
    063507 4654 - Tripod (screws into back of meter) $30.00
    603074 3074 - Pro Series Hard Sided Carrying Case $290.00
    603162 6262 - Pro Series Soft Sided Small Carrying Case $90.00
    063517 614 - Ultra clamp (screws into back of meter) $25.00
Add to Cart
  • Overview

    The Quatro cable attached to the Pro Plus allows you to utilize 4-ports to measure temperature/conductivity, DO, and any two ISEs among pH, ORP, ammonium, chloride, or nitrate creating an extremely powerful handheld multiparameter instrument.

    Toughest
    The Pro Plus instrument meets the demands of true field work. The instrument is rated to IP-67 standards even without the battery cover on. Other tough features include a 3-year warranty, Mil-spec connectors, rubber overmolded case, and a 2-year cable warranty. In-house testing procedures also include 1-meter drop tests from all angles to ensure expected field-durability.

    Tough, Field Durability Features Include:

    • Easy-to-install cable weights; can be daisy-chained for additional weight*
    • Rubber, over-molded IP-67 waterproof case (even without the battery cover)*
    • 3-year instrument warranty
    • 2-year cable warranty*
    • Rugged cables, sensors, and military-spec connectors*
    • Drop-tested 1 meter at all angles*
    • Scratch-resistant lens; viewable with polarized glasses
    • Instrument floats
    • Weighted, user-replaceable multi-sensor design

    Smartest
    The instrument provides numerous benefits from the following features; 5,000 data-set memory, password protection, backlit display and keypad, graphic display with detailed Help functionality, re-cal prompts, user defined fields, detailed GLP, auto stable, Hold All Readings function, Data Manager software for the desktop, USB connection, auto-buffer recognition, and flexible folders and site lists for logging data.

    Smart Features Include:

    • 5,000 data set memory
    • Detailed on-screen Help function*
    • Free, Data Manager desktop software and ProComm II saddle*
    • Interval or single-event logging
    • 100 folder & site list data structure*
    • Password protection
    • Detailed GLP data
    • USB connection also powers the instrument
    • 6-point cal with auto-buffer recognition*
    • User-adjustable auto-stable with prompts*
    • User-upgradeable software via waterproof USB port
    • Recalibration prompts
    • Search function filters user-defined data information*
    • Backlit display AND keypad*
    • Cable management kit included with all cables from 4- to 30-meters*

    Most Versatile
    Connect any Professional Series cable (excludes ODO cables) and probe option to the instrument and use the convenient cable management kit to keep everything simple and organized. Cable options range from 1-, 4-, 10-, 20-, and 30-meter choices (up to 100-meters on DO only cables). Use lab or field probes and switch between the two quickly. The Pro Plus makes an ideal lab BOD instrument with the proven self-stirring BOD probe (EPA Approved). A convenient handstrap can be used on either side of the instrument. A complete family of accessories also increases the versatility of the Pro Plus. Choose among accessories including carrying cases, flow cells, cable weight, belt clip, tripod, and c-clamp.

    Interested in a Pro Series Product? Check out the trade in program currently going on (U.S. only).

    YSI now offers an Extended Warranty for the Pro Plus (new instruments only).

    Please visit the Professional Plus Kits page for fully assembled systems.

    Added Versatility Features Include:

    • Adjustable right- or left-handed hand strap*
    • Multiple user-replaceable sensor options and a choice of DO sensors*
    • Multiple parameter options and cable lengths
    • Lab-grade ISE sensors and BOD probe available to make a true lab/field instrument
    • Languages - English, Spanish, German, French, Italian, Norwegian, Portuguese, Japanese, Chinese (Simplified and Traditional)
    • Wide array of accessories are available from flow cells, to shoulder straps, to carrying cases

    Free - Data Manager - Watch the Data Manager Demo Video
    Data management can become a daunting task over time but with the Data Manager software this task is much simpler and efficient. Download data, configure instruments, and conduct real-time studies easily with Data Manager software. View data graphically or in tabular form and export data as needed to other programs. Data Manager software is a very powerful tool. So powerful in fact, that we give it to you at no charge when purchasing a Pro Plus. After all, it's all about the data!

    When purchasing the Pro Plus you will receive the instrument, manual, batteries, communications saddle, USB cable, and Data Manager software. Cables and probes are ordered separately.

    * feature or benefit only YSI offers on a handheld instrument.

  • Specifications
    Autostable User-defined auto-stable function holds stable readings on display when criteria is met
    Certifications RoHS, CE, WEEE, C-Tick, VCCI, FCC, IP-67 (waterproof), 1-meter drop test, Assembled in USA
    Connectivity / Communications USB 2.0 for data transfer and user-upgradeable instrument firmware. Communications saddle, USB cable and Data Manager software included
    Connector Metal MS (military spec) waterproof with bayonet lock
    Data Management

    5000 data set memory in Pro Plus with 100 user-defined sites and site names. Data Manager desktop software included

    Desktop Software Compatible Data Manager desktop software included. Minimum PC requirements - Windows 2000 with SP4 (minimum) or XP with SP2 (minimum), Vista 7 or Windows 8 | 300 MHz or higher Pentium-compatible CPU | 128 MB of RAM or higher | 80 MB or more of free hard-disk space
    Digital / Digital Sensors No, the Pro Plus is an analog instrument
    GLP Compliance Yes, detailed GLP information is stored and is available to view, download or print
    Graphic Display Graphic display can be seen in any lighting condition and with polarized glasses | Backlit display AND keypad | Includes detailed on-board Help
    Languages Spanish, Norwegian, Japanese, Portuguese, French, English, German, Italian, Chinese (Simplified and Traditional)
    Logging Capabilities Single or Continuous
    Memory 5,000 data sets (data, date, time, user-defined info), 100 GLP files
    Multiparameter Yes
    Operating Temperature -10 to 60°C
    Parameters Measured Temperature, Dissolved Oxygen, pH, ORP/Redox, Conductivity, TDS, Ammonia, Ammonium, Nitrate, Chloride,Built-in barometer
    Power ProComm II saddle provides USB power or optional wall power, cigarette lighter, and universal cell phone charger options, 2 alkaline C-cells provide 80 continuous hours at ambient temperature without backlight
    Sampling Yes
    Storage Temperature -20 to 70°C
    Unit of Measure Temperature- °C, Dissolved Oxygen-%, Ammonium-mg/L-N, Nitrate-mg/L-N, mg/L, air saturation, Total Dissolved Solids(TDS)-g/L, Barameter-mmHg, ORP-mV, Chloride-mg/L, Conductivity-mS/cm, Salinity-ppt, °F, pH-units
    User Calibratable Yes
    User Replaceable Yes, cables and most sensors are user-replaceable
    Warranty 3-year instrument; 2-year field cables
    Waterproof IP-67 (even with the battery cover off and cable disconnected), floats

    Professional Plus Instrument General Specifications

    Specification  
    Barometer Built-in barometer
    Buffer Recognition Auto buffer recognition for US and NIST buffers
    Cables: Field Standard lengths of 1, 4, 10, 20, or 30 meters - up to 100 meters on DO only cables;  4- through 30-meter cables include a cable management kit
    Cables: Lab BOD sensor includes 2-meter cable; 1 or 4 meters on lab pH, ORP and pH/ORP cables
    Dimensions 8.3 cm width x 21.6 cm length x 5.6 cm depth (3.25 in x 8.5 in x 2.21 in)
    DO Membrane Response Times (T95; 100%-0) and Required Flow Rate 1.25 mil PE = 8 seconds and 6 in/sec flow
    2.0 mil PE = 17 seconds and 3 in/sec flow
    1 mil Teflon® = 18 seconds and 12 in/sec flow
    DO Sensors Polarographic or galvanic field sensors; self-stirring polarographic BOD sensor for the lab
    Flow Cell Single, dual and multiparameter Quatro cable all flow cell compatible
    User ID Optional user ID for data security
    Weight 475 grams (1.05 lbs)

     

    Professional Plus System Specifications (Instrument, Cables & Sensors)

    Parameter
    (units)
    Sensor Type Range Accuracy Resolution Calibration
    Ammonium*
    (mg/L-N mV)
    ammonia with pH sensor
    Ion Selective Electrode 0 to 200 mg/L-N, 0 to 30°C ±10% of reading or 2 mg/L-N, whichever is greater 0.01 mg/L 1, 2, or 3 point
    (user selectable)
    Barometer
    (mmHg, inHg, mbar, psi, kPa, ATM)
    Piezoresistive 375 to 825 mmHg ±1.5 mmHg from 0 to 50°C 0.1 mmHg 1 point
    Chloride*
    (mg/L-Cl-, mV)
    Ion Selective Electrode 0 to 1000 mg/L, 0 to 40°C​ ±15% of reading or 5 mg/L, whichever is greater 0.01 mg/L 1, 2, or 3 point
    (user selectable)
    Conductivity**
    (µS, mS)
    Four Electrode Cell 0 to 200 mS/cm (auto-range) 1 m, 4 m cables:
    ±0.5% of reading or 0.001 mS/cm, whichever is greater
    20 m cable:
     ±1% of reading or 0.001 mS/cm, whichever is greater 

    Range dependent

    0 to 0.500 mS/cm: 0.001
    0.501 to 50.00 mS/cm: 0.01
    50.01 to 200 mS/cm: 0.1

     

    1 point

    Dissolved Oxygen
    (% saturation)
    temp comp range -5 to 50°C

    Polarographic or Galvanic 0 to 500% 0 to 200% :
    ± 2% of reading or 2% air saturation, whichever is greater
    200% – 500% :
    ± 6% of reading
    0.1% or 1% air saturation (user selectable) 1 or 2-points with zero
    Dissolved Oxygen
    (mg/L, ppm)
    temp comp range -5 to 50°C
    Polarographic or Galvanic 0 to 50 mg/L 0 to 20 mg/L :
    ± 2% of reading or 0.2 mg/L, whichever is greater
    20 – 50 mg/L :
    ± 6% of reading
    0.1 or 0.01 mg/L (user selectable); 0.1% air saturation 1 or 2-points with zero
    Nitrate*
    (mg/L-N mV)
    Ion Selective Electrode 0 to 200 mg/L-N, 0 to 30°C ±10% of reading or 2 mg/L-N, whichever is greater 0.01 mg/L 1, 2, or 3 point
    (user selectable)
    ORP
    (mV)
    Platinum Button -1999 to +1999 mV ±20 mV in redox standards 0.1 mV 1 point
    pH
    (mV, pH units)
    Glass Combination Electrode 0 to 14 units ±0.2 units 0.01 units 1, 2, 3, 4, 5, or 6 point (user selectable); US, NIST or Custom Buffers
    Salinity
    (ppt, PSU)
    Calculated from Conductivity and Temperature 0 to 70 ppt ±1.0% of reading or ±0.1 ppt, whichever is greater 0.01 ppt 1 point

    Temperature
    Field-rugged cables
    (°C, °F, K)

    Thermistor  -5 to 70°C (23 to 158°F)
    ±0.2°C; 
    ±0.3°C cables over 45-meters
    0.1°C None
    Temperature***
    Lab-grade cables​
    (°C, °F, K)
    Thermistor  0 to 40°C (32 to 104°F) ±0.35°C 0.1°C None
    Total Dissolved Solids (TDS)
    (mg/L, kg/L, g/L)
    Calculated from Conductivity and Temperature 0 to 100 g/L; TDS constant range 0.30 to 1.00 (0.65 default) - 0.001, 0.01, 0.1g/L -

    * ISE sensors for freshwater only; 17-meter maximum depth
    ** Derived parameters can include resistivity, salinity, specific conductance, and total dissolved solids
    *** Lab-grade cables include 605107, -108, -109, 605177, -178, -179

  • Accessories

    Pro Series Laboratory Grade pH Sensor

    pH and temperature single junction combination electrode with cable and MS connector

    Pro Series Laboratory Grade ORP (Redox) Sensor

    ORP and temperature single junction combination electrode with cable and MS connector

    Pro Series Laboratory pH/ORP Sensor

    pH, ORP, and temperature single junction combination electrode with cable and MS connector

    Electrode Stand

    Electrode Stand

    Pro Series Galvanic Dissolved Oxygen Sensor

    Galvanic DO Sensor with Yellow Membrane Kit

    Pro Series Polarographic Dissolved Oxygen Sensor

    Polarographic DO Sensor with Yellow Membrane Kit

    Pro Series pH/ORP/ISE Field Cable

    pH/ORP/ISE and temperature cable assembly

    Pro Series Dual pH/ORP/ISE Field Cable

    Dual pH/ORP/ISE and temperature cable assembly

    Pro Series pH/ORP/ISE and DO Field Cable

    pH/ORP/ISE and DO cable assembly

    Pro Series pH/ORP/ISE and Conductivity Field Cable

    pH/ORP/ISE and Conductivity cable assembly.

    Pro Series Dissolved Oxygen/Temperature Field Cable

    DO and temperature cable assembly

    Pro Series DO/Conductivity Field Cable

    DO, conductivity, and temperature cable assembly

    Pro Series Conductivity Field Cable

    Conductivity and temperature cable assembly

    Pro Plus Quatro Field Cable

    Quatro - Dual ISE, conductivity, DO, and temperature cable assembly.

    Pro1001A Amplified pH Sensor

    1001A Amplified pH Sensor

    Pro1001A Amplified pH Sensor Kit

    1001A Amplified pH Sensor Kit*

    Pro1003A Amplified pH/ORP Combo Sensor

    1003A Amplified pH/ORP Combo Sensor

    Pro1003A Amplified pH/ORP Combo Sensor Kit

    1003A Amplified pH/ORP Combo Sensor Kit

    Pro Series BOD Probe

    Self-stirring BOD probe for use with the Pro20 and Pro Plus

    pH Buffer

    pH Buffer

    Ammonium Standard

    Ammonium Calibration Solution

    Conductivity Calibrator Solution

    Conductivity Calibrator Solution

    Nitrate Standard

    Nitrate Standard

    Zobell Solution, ORP Calibrator

    Zobell Solution, ORP Calibrator

    5580 Confidence Solution (case of 6 pints)

    5580 Confidence Solution (case of 6 pints)

    Cap Membrane Kit 1.00 Mil Teflon

    Cap Membrane Kit 1.00 Mil Teflon (6 each), includes electrolyte (black cap)

    Cap Membrane Kit 1.00 Mil Teflon

    Cap Membrane Kit 1.00 Mil Teflon (6 each), includes electrolyte (black cap)

    Extended Warranty Professional Plus (Pro Plus)

    One Year Extended Product Warranty for Pro Plus

  • How to Order

    Step 1: Order Instrument

    SKU Description
    6050000 Instrument, includes Data Manager software, the ProComm II communications saddle, and USB cable

    Step 2: Order Cable(s)

    SKU Description
    60510 1, 4, 10, 20 or 30 meter: ISE*/temp
    60520 1, 4, 10, 20, 30 or up to100 meters**: DO/temp
    60530 1, 4, 10, 20 or 30 meter: conductivity/temp
    6051010 1, 4, 10, 20 or 30 meter: ISE/ISE/temp
    6051020 1, 4, 10, 20 or 30 meter: ISE/DO/temp
    6051030 1, 4, 10, 20 or 30 meter: ISE/conductivity/temp
    6052030 1, 4, 10, 20 or 30 meter: DO/conductivity/temp
    605790 1, 4, 10, 20 or 30 meter: ISE/ISE/DO/conductivity/temp
    605107 1–meter single junction pH sensor & cable
    605177 4–meter single junction pH sensor & cable
    605108 1–meter single junction ORP sensor & cable
    605178 4–meter single junction ORP sensor & cable
    605109 1–meter single junction pH/ORP sensor & cable
    605179 4–meter single junction pH/ORP sensor & cable

    Step 3: Order Sensor(s)

    SKU Description
    605202 Galvanic DO
    605203 Polarographic DO
    605780 Self-stirring BOD (2-meter cable included)
    605101 pH (ISE)
    605102 ORP (ISE)
    605103 pH/ORP combination (ISE)***
    605104 Ammonium (ISE)
    605105 Chloride (ISE)
    605106 Nitrate (ISE)

    * ISEs include pH, ORP, Ammonium, Nitrate, Chloride
    ** Special order cables in 10-meter increments up to 100 meter available
    *** Not recommended on 6051010 or 605790 cables. Only pH would appear.

  • Video

    YSI Professional Plus Multiparameter Water Quality Instrument

    YSI Pro Plus multiparameter meter. This handheld laboratory/field water quality meter features many options to make your job easier. On-screen Help, backlit display and keypad, 5,000 data set memory and rugged connectors are just some of the features.

  • Reviews
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